Hire the Best C# Developers & Programmers

Clients rate our C# Developers & Programmers
Rating is 4.8 out of 5.
4.8/5
Based on 8,161 client reviews
Rushit J.

Ahmedabad, India

$12/hr
4.3
6 jobs

I am a senior full-stack .NET developer with 13+ years of experience, specializing in building scalable web applications, RESTful APIs, and enterprise systems. I’ve helped clients reduce load times, optimize backend performance, integrate complex third-party APIs, and manage cloud infrastructure on Azure. I help individuals, startups, SMBs, and enterprises build reliable, scalable, and user-friendly .NET applications. ➜ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐟𝐨𝐫 𝐘𝐨𝐮 You’ll get more than just coding support — I ensure your software is: • Reliable & Scalable → Built on robust .NET architecture. • User-Friendly → Clean UI/UX for smooth adoption. • Future-Proof → Modern technologies and maintainable code. • On-Time → Agile approach with frequent updates and demos. ➜ 𝐌𝐲 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 • Backend: C#, VB, .NET Core, ASP .NET MVC, ASP .NET Core, Web API • Frontend / UI: Angular, ReactJS, VueJS, JavaScript, jQuery, Bootstrap, HTML5, CSS3, Tailwind CSS • Databases: SQL Server, SQLite, MySQL, MongoDB, PostgreSQL, EF / ADO.NET • Cloud / DevOps: Azure, Azure DevOps, CI/CD • Other: API integration, WCF / SOAP, REST, Real-time systems Integrations, Payment gateway, SignalR ➜ 𝐖𝐡𝐨 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 • Startups looking to launch MVPs • SMEs modernizing legacy systems • Enterprises needing robust desktop, web, or mobile apps • B2B & B2C businesses seeking tailored software solutions ➜ 𝐌𝐲 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 1. Understand your goals & requirements 2. Propose the most effective technical approach 3. Share similar past work & align expectations 4. Start with a pilot milestone (risk-free) 5. Provide regular updates, demos, and post-deployment support ➜ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 • Upwork jobs with 100% (5 *) ratings • Client-Centric Approach: clear communication, flexible engagement • Confidentiality Assured: NDA & secure contracts • Proven Track Record: worked with startups and global enterprises • Easy Collaboration: available via Skype, Teams, Slack, Zoom Let’s work together to create something extraordinary. Updating an existing app, or building something from the ground up — drop me a message, it is free to talk it over.

  • C#
  • Azure DevOps
  • ASP.NET
  • ASP.NET MVC
  • Angular
  • .NET Core
  • Microsoft Azure
  • Web Application
  • Angular 10
  • ASP.NET Core
  • ASP.NET Web API
  • Back-End Development
  • Front-End Development
  • Full-Stack Development
  • Azure App Service
Shady M.

Basioun, Egypt

$25/hr
4.9
71 jobs

A skilled software developer, on various platforms ranging from Windows to Linux to ARM and other embedded devices (AVR, PIC, etc). My preferred programming languages include, but are not limited to: - C/C++ - Java - Python - Rust - C# - Matlab I'm familiar with various open source libraries in different programming languages such as STL, Curl, Json, GTK, Swing, BeautifulSoup, Requests, Selenium, Tkinter, and many more... I've experience in Embedded Software using various microcontrollers (AVR, PIC, STM32, TM4C123, etc...). I've used many peripherals such as (GPIO, Timer, PWM, NVIC, RCC, FPEC, UART, SPI, I2C, CAN, ADC,...), interfaced it with many sensors and actuators. I've built many projects ranging from simple projects (blinking LEDs, motor control, calculator, stop watch, ...) to more advanced projects (Bootloader, Smart Home, Digital Clock, ...). I have a strong background about Algorithms and Data Structures such as: - Dynamic Programming - Backtracking - Graphs - DFS - BFS - MST - Heap - Trie - Balanced BSTs - Segment Trees - Disjoint Set - and many more... I've solved +370 DSA problems on HackerRank platform and got ranked 660 over 23 million developers in solving coding challenges. You can find my profile in the portfolio. My primary focus in writing software is performance, without sacrificing the safety and security of the application. I will do my best to discuss all the relevant details and the scope of the project with the client, so that I can form an idea of the finished product in order to be able to lay a better groundwork design for the project.

  • AVR Microcontroller
  • C
  • Embedded System
  • Java
  • C++
  • STM32
  • Data Structures
  • Algorithms
  • Mathematics
  • Algorithm Development
  • Web Scraping
  • Tutoring
  • Bash Programming
  • Rust
RAVI R.

Mumbai, India

$45/hr
4.9
67 jobs

Most teams don't struggle to find developers. They struggle to find someone who can own architecture decisions, hold engineering standards, and still get hands-on when it matters. That's the role I've filled for over 10 years. I specialize in .NET Core and C# backend systems — designing REST APIs, building microservices, and architecting enterprise-grade platforms end to end. On the front end I work across Angular and React. Cloud deployments across Azure and AWS, CI/CD pipelines, and Agile delivery are all part of my regular workflow. On Upwork: Top Rated Plus, 100% Job Success Score, 50+ completed contracts, 12,000+ hours billed — mostly with US-based product teams that needed a senior engineer they could trust to own the technical side. I take on both long-term engagements and focused consulting work. If you have a complex backend challenge or need a technical lead who can bridge engineering and business — let's talk.

  • C#
  • .NET Core
  • Microsoft SQL Server
  • .NET Framework
  • ASP.NET MVC
  • MERN Stack
  • Angular
  • React
  • JavaScript
  • API
  • Web Development
Vad M.

Hallandale Beach, Florida

$40/hr
5.0
105 jobs

Live Video App Development, AI App Development, MVP Development, Video Surveillance, WebRTC & Live Streaming. I help founders and product teams plan, scope, and deliver production-grade video and AI applications with Fora Soft’s senior engineering team. My focus is discovery, product requirements, technical scoping, architecture planning, delivery coordination, and client communication. The engineering work is handled by Fora Soft’s specialized developers, architects, QA engineers, and project managers. Backed by Fora Soft: $10M+ earned on Upwork, 914 jobs, 401K+ hours, and 250+ projects since 2005. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱 – Live video apps, WebRTC platforms, streaming products, webinars, broadcasting, IPTV/OTT – AI video apps: object detection, facial analysis, emotion AI, speech-to-speech translation, captions, LLM assistants – Video surveillance and IP camera platforms: multi-camera ingestion, mobile-as-camera, smart analytics, Smart TV apps – VoIP, UCaaS, SIP, LiveKit, Twilio, Telnyx, FreeSWITCH, real-time communication systems – MVPs, rescue projects, architecture reviews, and modernization of existing systems 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗘𝘅𝗮𝗺𝗽𝗹es → Nucleus – secure UCaaS platform by Fibernetics, a Canadian telecom serving 300K+ customers and 5,000+ businesses. Fora Soft worked on iOS and platform delivery for WebRTC + SIP audio/video, real-time voice workflows, CRM/ERP integrations, and enterprise-grade communication features. Project volume: $285K+ combined. → TransLinguist – real-time AI interpretation platform for video calls. The platform supports interpretation workflows across 75+ languages, certified interpreter operations, AI speech-to-speech features, and live captions. → Doorbell App – LiveKit SIP-to-WebRTC bridge for smart intercoms. Video and audio from SIP intercoms to a mobile app, low-latency media through LiveKit, and DTMF-based remote door opening. → EmoProof – on-device emotion AI for iOS using Core ML. Real-time facial emotion and voice sentiment analysis on the phone, with privacy-focused processing and journal-style trend stats. 𝗪𝗵𝗲𝗿𝗲 𝗙𝗼𝗿𝗮 𝗦𝗼𝗳𝘁 𝗜𝘀 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝘀𝘁 – Live streaming & WebRTC: low-latency broadcasting, webinars, multi-camera apps, IPTV/OTT – Video surveillance: IP cameras, mobile-as-camera, smart analytics, Smart TV apps – Real-time AI/ML on video: OpenCV, YOLO, facial analysis, object detection, speech AI, captions – Mobile live video: iOS, Android, React Native, AVFoundation, Camera2 – VoIP & UCaaS: SIP, FreeSWITCH, LiveKit, Telnyx, Twilio, high-load communication systems 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗢𝘂𝗿 𝗧𝗲𝗮𝗺 𝗪𝗼𝗿𝗸𝘀 𝗪𝗶𝘁𝗵 ◆ Frontend: React, Next.js, Vue, Angular, TypeScript ◆ Backend: Node.js, NestJS, Python / FastAPI, Go, PHP / Laravel ◆ Video: WebRTC, LiveKit, Wowza, Kurento, MediaSoup, Janus, Jitsi, Agora, FFmpeg, GStreamer, HLS/DASH, RTMP/RTSP, SIP, FreeSWITCH, Telnyx, Twilio ◆ AI/ML: OpenAI API, Claude, Whisper, TensorFlow, PyTorch, OpenCV, YOLO, Azure AI Face, Deepgram ◆ Mobile: Swift, Kotlin, React Native, ARKit, ARCore, AVFoundation, Camera2 API ◆ Databases & Infrastructure: PostgreSQL, MongoDB, Redis, Elasticsearch, AWS, GCP, Docker, Kubernetes, NGINX, CI/CD 𝗪𝗵𝘆 𝗙𝗼𝗿𝗮𝗦𝗼𝗳𝘁 Fora Soft is a specialized video, WebRTC, and telecom software team with: – $10M+ earned on Upwork – 914 Upwork jobs – 401K+ hours – 250+ projects since 2005 – 400+ clients across 17+ countries – Deep experience in live video, streaming, VoIP, AI video, and real-time communication Send me a message or invite me to your job. I’ll review your idea, ask the right scoping questions, and suggest the best next step: discovery, audit, MVP planning, or full development.

  • WebRTC
  • JavaScript
  • AI Development
  • Mobile App Development
  • Web Application Development
  • iOS Development
  • Node.js
  • Chat & Messaging Software
  • Twilio API
  • Telemedicine
  • VoIP Software
  • Streaming Platform
  • Video Stream
  • Video Management Software
  • IPTV
Dardo F.

Colonia Santa Teresa, Argentina

$32/hr
5.0
7 jobs

I'm a professional .NET developer since 2006, developing in .NET Framework WinForms applications first, WebForms applications since 2010, some ASP.NET MVC and more specifically: .NET Core + EF Core and Angular + ReactJS solutions since 2018, + .NET6 for mostly containerized apps since 2022, and .NET8/9 and 10 since this 2026. I like challenges, I like to design new projects as well as fixing bugs on existent new apps. I like researching and trying new ideas. I like to do some C and C++ in my Linux PC (just for fun by now). My experience is mostly based in having been working for outsourcing as well as own product companies in Argentina and Uruguay. I also worked for international enterprises like Hewlett Packard (Enterprise Services) developing apps for specific customers (private companies). My tech stack: * .NET Framework: WinForms, ASP.NET WebForms and ASP.NET MVC. * .NET Core: ASP.NET Core MVC, REST APIs, and EF Core, Dapper. Some Redis. Preferred: .NET6 and upper. * T-SQL: mostly MySQL Server and SQL Server; and some (outdated now) experience in PL-SQL and PostgreSQL too. * HTML, CSS, javascript, jQuery. * Angular 2+. * ReactJS * Docker, Git, Agile (Scrum)

  • C#
  • Transact-SQL
  • ASP.NET MVC
  • HTML
  • JavaScript
  • Web Development
  • ASP.NET Core
  • API
  • ASP.NET
  • JSON
  • Angular
Amit P.

Noida, India

$25/hr
4.9
9 jobs

Hey there, We are a leading firm with expertise in Software Development, Mobile Applications, Web Applications, Machine Learning, Artificial Intelligence, Blockchain and capability to work on all kinds of software including Full Stack, MEAN, Java, Python, Node, Grails, etc. We are a team of 120+ programmers in different domain and we offer all kinds of solutions under a roof. We love to hear from you 24x7x365. No matter in which time-zone you are, our team is open to working with you in your time-zone. Our Core Software Technical Expertise: -------------------------------------------------------------------------------------------------------------- Web- Java, .NET, Python, PHP, Node.js, React.js, Angular.js, Express.js, Vue.js, etc. Mobile - Ionic, Objective-C, SWIFT, X-Code, iOS & Android Development. Database- MySQL, MSSQL, MongoDB, Oracle RDBMS, SQlite, MongoDB, etc. - Design and develop Native iOS/Android applications using Swift, Obj-C, Java - Hybrid app development using React Native, Native & Forms, Ionic - Expert in OOP, Multi-Threading, Client/Server Programming, Database Programming, Networking - Building backend service using Php(Laravel, Codeigniter), Node.JS, Python. - Database Programming (MySQL, Sqlite, Realm, MongoDB, Dynamo, PostgreSql) - Social Media Integration, Geo-Location, GPS tracking, Payment gateway integration. - Cloud Backend service integration such as Firebase, AWS, QuickBlox, etc - Image/Video processing using OpenCV, OpenGL, 3rd party plugins. - High Web development skills in HTML5, Javascript, BootStrap, Php, Angular. - Server Management (AWS EC2, Digital Ocean, Heroku) - Source Version Control(Git/Bitbucket/SVN and etc) - Task/Team Management tool (Github, Trello, Jira, Slack) - Bug tracking system(Instabug, Bugsnag) We allowed our developers to directly work with clients remotely full time 40 hrs/week Every day we come to work, to transform the ideas of our clients into working applications. We look at every new assignment as an opportunity to nurture a long term business relation. Exceeding the expectations of our clients and making them a permanent member of our business family is our cherished goal. I thank you in advance for your time spent reviewing my profile. I & my team look forward to working with you.

  • Python
  • Java
  • React
  • JavaScript
  • Spring Cloud
  • PHP
  • Ionic Framework
  • Spring Boot
  • Node.js
  • React Native

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

C# Developer Hiring FAQs

What is a C# developer?

C# developers write quality code for responsive desktop and web applications or back-end processes. C# is an adaptable, object-oriented programming (OOP) language based on the Common Language Infrastructure.

How do you hire a C# developer?

You can source C# developer talent on Upwork by following these three steps:

  • Write a project description. You’ll want to determine your scope of work and the skills and requirements you are looking for in a C# developer.
  • Post it on Upwork. Once you’ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview C# developer. Once the proposals start coming in, create a shortlist of the professionals you want to interview. 

Of these three steps, your project description is where you will determine your scope of work and the specific type of C# developer you need to complete your project.

How much does it cost to hire a C# developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced C# developer may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their C# developer services more competitively. 

Rates typically charged by C# developers on Upwork are:

  • Beginner: $25 per hour
  • Intermediate: $47 per hour
  • Advanced: $120 per hour

Which one is right for you will depend on the specifics of your project. 

How do you write a C# developer job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

Job post title

Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample C# developer job post titles:

  • C# developer needed for macroverse engineering support
  • Seeking C# developer for an educational game
  • Looking for a C# developer for a real estate app

Project description

An effective C# developer job post should include: 

  • Scope of work: From configuration to execution, list all the deliverables you’ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain industries, software, or architectural patterns, mention this here. 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

C# developer job responsibilities

Here are some examples of C# developer job responsibilities:

  • Take an application storyboard from concept to reality
  • Outline, write, and maintain functional, responsive, and reliable C# code
  • Plan and build user interfaces and interactive media applications
  • Identify and fix bugs and bottlenecks

C# developer job requirements and qualifications

Be sure to include any requirements and qualifications you’re looking for in a C# developer. Here are some examples:

  • Experience working in various C# ecosystems and using OOP
  • Background in building RESTful web services with WCF/WebAPI
  • Familiar with an array of architectural and design practices
  • History of supporting business processes with clean C# code and database schemas